No not really. Stuff like this is not about the logical semantics of words. Nobody uses the word selenology. And nobody interested in geological questions will

No not really. Stuff like this is not about the logical semantics of words. Nobody uses the word selenology. And nobody interested in geological questions will refrain from looking on heavenly bodies because 'geo' means earth. In planetary sciences the word geology is used, and in geology texts you will find the planets, moons, and asteroids being covered and their geology being described.